/doc/tagger.extras-pysrc.html
HTML | 276 lines | 245 code | 10 blank | 21 comment | 0 complexity | c144541f7783f12ad44a0a71dc5ea828 MD5 | raw file
1<?xml version="1.0" encoding="ascii"?> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 3 "DTD/xhtml1-transitional.dtd"> 4<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> 5<head> 6 <title>tagger.extras</title> 7 <link rel="stylesheet" href="epydoc.css" type="text/css" /> 8 <script type="text/javascript" src="epydoc.js"></script> 9</head> 10 11<body bgcolor="white" text="black" link="blue" vlink="#204080" 12 alink="#204080"> 13<!-- ==================== NAVIGATION BAR ==================== --> 14<table class="navbar" border="0" width="100%" cellpadding="0" 15 bgcolor="#a0c0ff" cellspacing="0"> 16 <tr valign="middle"> 17 18 <!-- Tree link --> 19 <th> <a 20 href="module-tree.html">Trees</a> </th> 21 22 <!-- Index link --> 23 <th> <a 24 href="identifier-index.html">Indices</a> </th> 25 26 <!-- Help link --> 27 <th> <a 28 href="help.html">Help</a> </th> 29 30 <!-- Project homepage --> 31 <th class="navbar" align="right" width="100%"> 32 <table border="0" cellpadding="0" cellspacing="0"> 33 <tr><th class="navbar" align="center" 34 ><a class="navbar" target="_top" href="http://github.com/apresta/tagger">tagger</a></th> 35 </tr></table></th> 36 </tr> 37</table> 38<table width="100%" cellpadding="0" cellspacing="0"> 39 <tr valign="top"> 40 <td width="100%"> 41 <span class="breadcrumbs"> 42 Package tagger :: 43 Module extras 44 </span> 45 </td> 46 <td> 47 <table cellpadding="0" cellspacing="0"> 48 <!-- hide/show private --> 49 <tr><td align="right"><span class="options">[<a href="javascript:void(0);" class="privatelink" 50 onclick="toggle_private();">hide private</a>]</span></td></tr> 51 <tr><td align="right"><span class="options" 52 >[<a href="frames.html" target="_top">frames</a 53 >] | <a href="tagger.extras-pysrc.html" 54 target="_top">no frames</a>]</span></td></tr> 55 </table> 56 </td> 57 </tr> 58</table> 59<h1 class="epydoc">Source Code for <a href="tagger.extras-module.html">Module tagger.extras</a></h1> 60<pre class="py-src"> 61<a name="L1"></a><tt class="py-lineno"> 1</tt> <tt class="py-line"><tt class="py-comment"># Copyright (C) 2011 by Alessandro Presta</tt> </tt> 62<a name="L2"></a><tt class="py-lineno"> 2</tt> <tt class="py-line"> </tt> 63<a name="L3"></a><tt class="py-lineno"> 3</tt> <tt class="py-line"><tt class="py-comment"># Permission is hereby granted, free of charge, to any person obtaining a copy</tt> </tt> 64<a name="L4"></a><tt class="py-lineno"> 4</tt> <tt class="py-line"><tt class="py-comment"># of this software and associated documentation files (the "Software"), to deal</tt> </tt> 65<a name="L5"></a><tt class="py-lineno"> 5</tt> <tt class="py-line"><tt class="py-comment"># in the Software without restriction, including without limitation the rights</tt> </tt> 66<a name="L6"></a><tt class="py-lineno"> 6</tt> <tt class="py-line"><tt class="py-comment"># to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</tt> </tt> 67<a name="L7"></a><tt class="py-lineno"> 7</tt> <tt class="py-line"><tt class="py-comment"># copies of the Software, and to permit persons to whom the Software is</tt> </tt> 68<a name="L8"></a><tt class="py-lineno"> 8</tt> <tt class="py-line"><tt class="py-comment"># furnished to do so, subject to the following conditions:</tt> </tt> 69<a name="L9"></a><tt class="py-lineno"> 9</tt> <tt class="py-line"> </tt> 70<a name="L10"></a><tt class="py-lineno"> 10</tt> <tt class="py-line"><tt class="py-comment"># The above copyright notice and this permission notice shall be included in</tt> </tt> 71<a name="L11"></a><tt class="py-lineno"> 11</tt> <tt class="py-line"><tt class="py-comment"># all copies or substantial portions of the Software.</tt> </tt> 72<a name="L12"></a><tt class="py-lineno"> 12</tt> <tt class="py-line"> </tt> 73<a name="L13"></a><tt class="py-lineno"> 13</tt> <tt class="py-line"><tt class="py-comment"># THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</tt> </tt> 74<a name="L14"></a><tt class="py-lineno"> 14</tt> <tt class="py-line"><tt class="py-comment"># IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</tt> </tt> 75<a name="L15"></a><tt class="py-lineno"> 15</tt> <tt class="py-line"><tt class="py-comment"># FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</tt> </tt> 76<a name="L16"></a><tt class="py-lineno"> 16</tt> <tt class="py-line"><tt class="py-comment"># AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</tt> </tt> 77<a name="L17"></a><tt class="py-lineno"> 17</tt> <tt class="py-line"><tt class="py-comment"># LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</tt> </tt> 78<a name="L18"></a><tt class="py-lineno"> 18</tt> <tt class="py-line"><tt class="py-comment"># OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN</tt> </tt> 79<a name="L19"></a><tt class="py-lineno"> 19</tt> <tt class="py-line"><tt class="py-comment"># THE SOFTWARE</tt> </tt> 80<a name="L20"></a><tt class="py-lineno"> 20</tt> <tt class="py-line"> </tt> 81<a name="L21"></a><tt class="py-lineno"> 21</tt> <tt class="py-line"> </tt> 82<a name="L22"></a><tt class="py-lineno"> 22</tt> <tt class="py-line"><tt class="py-keyword">from</tt> <tt id="link-0" class="py-name" targets="Module tagger.tagger=tagger.tagger-module.html"><a title="tagger.tagger" class="py-name" href="#" onclick="return doclink('link-0', 'tagger', 'link-0');">tagger</a></tt> <tt class="py-keyword">import</tt> <tt class="py-op">*</tt> </tt> 83<a name="L23"></a><tt class="py-lineno"> 23</tt> <tt class="py-line"> </tt> 84<a name="L24"></a><tt class="py-lineno"> 24</tt> <tt class="py-line"> </tt> 85<a name="UnicodeReader"></a><div id="UnicodeReader-def"><a name="L25"></a><tt class="py-lineno"> 25</tt> <a class="py-toggle" href="#" id="UnicodeReader-toggle" onclick="return toggle('UnicodeReader');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.extras.UnicodeReader-class.html">UnicodeReader</a><tt class="py-op">(</tt><tt class="py-base-class">Reader</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 86</div><div id="UnicodeReader-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="UnicodeReader-expanded"><a name="L26"></a><tt class="py-lineno"> 26</tt> <tt class="py-line"> <tt class="py-docstring">'''</tt> </tt> 87<a name="L27"></a><tt class="py-lineno"> 27</tt> <tt class="py-line"><tt class="py-docstring"> Reader subclass that converts Unicode strings to a close ASCII</tt> </tt> 88<a name="L28"></a><tt class="py-lineno"> 28</tt> <tt class="py-line"><tt class="py-docstring"> representation</tt> </tt> 89<a name="L29"></a><tt class="py-lineno"> 29</tt> <tt class="py-line"><tt class="py-docstring"> '''</tt> </tt> 90<a name="L30"></a><tt class="py-lineno"> 30</tt> <tt class="py-line"> </tt> 91<a name="UnicodeReader.__call__"></a><div id="UnicodeReader.__call__-def"><a name="L31"></a><tt class="py-lineno"> 31</tt> <a class="py-toggle" href="#" id="UnicodeReader.__call__-toggle" onclick="return toggle('UnicodeReader.__call__');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.extras.UnicodeReader-class.html#__call__">__call__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 92</div><div id="UnicodeReader.__call__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="UnicodeReader.__call__-expanded"><a name="L32"></a><tt class="py-lineno"> 32</tt> <tt class="py-line"> <tt class="py-keyword">import</tt> <tt class="py-name">unicodedata</tt> </tt> 93<a name="L33"></a><tt class="py-lineno"> 33</tt> <tt class="py-line"> </tt> 94<a name="L34"></a><tt class="py-lineno"> 34</tt> <tt class="py-line"> <tt class="py-name">text</tt> <tt class="py-op">=</tt> <tt class="py-name">unicodedata</tt><tt class="py-op">.</tt><tt class="py-name">normalize</tt><tt class="py-op">(</tt><tt class="py-string">'NFKD'</tt><tt class="py-op">,</tt> <tt class="py-name">text</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">encode</tt><tt class="py-op">(</tt><tt class="py-string">'ascii'</tt><tt class="py-op">,</tt> <tt class="py-string">'ignore'</tt><tt class="py-op">)</tt> </tt> 95<a name="L35"></a><tt class="py-lineno"> 35</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt id="link-1" class="py-name" targets="Class tagger.tagger.Reader=tagger.tagger.Reader-class.html"><a title="tagger.tagger.Reader" class="py-name" href="#" onclick="return doclink('link-1', 'Reader', 'link-1');">Reader</a></tt><tt class="py-op">.</tt><tt id="link-2" class="py-name" targets="Method tagger.extras.HTMLReader.__call__()=tagger.extras.HTMLReader-class.html#__call__,Method tagger.extras.NaiveRater.__call__()=tagger.extras.NaiveRater-class.html#__call__,Method tagger.extras.SimpleReader.__call__()=tagger.extras.SimpleReader-class.html#__call__,Method tagger.extras.UnicodeReader.__call__()=tagger.extras.UnicodeReader-class.html#__call__,Method tagger.tagger.Rater.__call__()=tagger.tagger.Rater-class.html#__call__,Method tagger.tagger.Reader.__call__()=tagger.tagger.Reader-class.html#__call__,Method tagger.tagger.Stemmer.__call__()=tagger.tagger.Stemmer-class.html#__call__,Method tagger.tagger.Tagger.__call__()=tagger.tagger.Tagger-class.html#__call__"><a title="tagger.extras.HTMLReader.__call__ 96tagger.extras.NaiveRater.__call__ 97tagger.extras.SimpleReader.__call__ 98tagger.extras.UnicodeReader.__call__ 99tagger.tagger.Rater.__call__ 100tagger.tagger.Reader.__call__ 101tagger.tagger.Stemmer.__call__ 102tagger.tagger.Tagger.__call__" class="py-name" href="#" onclick="return doclink('link-2', '__call__', 'link-2');">__call__</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">text</tt><tt class="py-op">)</tt> </tt> 103</div></div><a name="L36"></a><tt class="py-lineno"> 36</tt> <tt class="py-line"> </tt> 104<a name="L37"></a><tt class="py-lineno"> 37</tt> <tt class="py-line"> </tt> 105<a name="HTMLReader"></a><div id="HTMLReader-def"><a name="L38"></a><tt class="py-lineno"> 38</tt> <a class="py-toggle" href="#" id="HTMLReader-toggle" onclick="return toggle('HTMLReader');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.extras.HTMLReader-class.html">HTMLReader</a><tt class="py-op">(</tt><tt class="py-base-class">UnicodeReader</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 106</div><div id="HTMLReader-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="HTMLReader-expanded"><a name="L39"></a><tt class="py-lineno"> 39</tt> <tt class="py-line"> <tt class="py-docstring">'''</tt> </tt> 107<a name="L40"></a><tt class="py-lineno"> 40</tt> <tt class="py-line"><tt class="py-docstring"> Reader subclass that can parse HTML code from the input</tt> </tt> 108<a name="L41"></a><tt class="py-lineno"> 41</tt> <tt class="py-line"><tt class="py-docstring"> '''</tt> </tt> 109<a name="L42"></a><tt class="py-lineno"> 42</tt> <tt class="py-line"> </tt> 110<a name="HTMLReader.__call__"></a><div id="HTMLReader.__call__-def"><a name="L43"></a><tt class="py-lineno"> 43</tt> <a class="py-toggle" href="#" id="HTMLReader.__call__-toggle" onclick="return toggle('HTMLReader.__call__');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.extras.HTMLReader-class.html#__call__">__call__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">html</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 111</div><div id="HTMLReader.__call__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="HTMLReader.__call__-expanded"><a name="L44"></a><tt class="py-lineno"> 44</tt> <tt class="py-line"> <tt class="py-keyword">import</tt> <tt class="py-name">lxml</tt><tt class="py-op">.</tt><tt class="py-name">html</tt> </tt> 112<a name="L45"></a><tt class="py-lineno"> 45</tt> <tt class="py-line"> </tt> 113<a name="L46"></a><tt class="py-lineno"> 46</tt> <tt class="py-line"> <tt class="py-name">text</tt> <tt class="py-op">=</tt> <tt class="py-name">lxml</tt><tt class="py-op">.</tt><tt class="py-name">html</tt><tt class="py-op">.</tt><tt class="py-name">fromstring</tt><tt class="py-op">(</tt><tt class="py-name">html</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">text_content</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt> 114<a name="L47"></a><tt class="py-lineno"> 47</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">isinstance</tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">,</tt> <tt class="py-name">unicode</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 115<a name="L48"></a><tt class="py-lineno"> 48</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt id="link-3" class="py-name" targets="Class tagger.extras.UnicodeReader=tagger.extras.UnicodeReader-class.html"><a title="tagger.extras.UnicodeReader" class="py-name" href="#" onclick="return doclink('link-3', 'UnicodeReader', 'link-3');">UnicodeReader</a></tt><tt class="py-op">.</tt><tt id="link-4" class="py-name"><a title="tagger.extras.HTMLReader.__call__ 116tagger.extras.NaiveRater.__call__ 117tagger.extras.SimpleReader.__call__ 118tagger.extras.UnicodeReader.__call__ 119tagger.tagger.Rater.__call__ 120tagger.tagger.Reader.__call__ 121tagger.tagger.Stemmer.__call__ 122tagger.tagger.Tagger.__call__" class="py-name" href="#" onclick="return doclink('link-4', '__call__', 'link-2');">__call__</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">text</tt><tt class="py-op">)</tt> </tt> 123<a name="L49"></a><tt class="py-lineno"> 49</tt> <tt class="py-line"> <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt> 124<a name="L50"></a><tt class="py-lineno"> 50</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt id="link-5" class="py-name"><a title="tagger.tagger.Reader" class="py-name" href="#" onclick="return doclink('link-5', 'Reader', 'link-1');">Reader</a></tt><tt class="py-op">.</tt><tt id="link-6" class="py-name"><a title="tagger.extras.HTMLReader.__call__ 125tagger.extras.NaiveRater.__call__ 126tagger.extras.SimpleReader.__call__ 127tagger.extras.UnicodeReader.__call__ 128tagger.tagger.Rater.__call__ 129tagger.tagger.Reader.__call__ 130tagger.tagger.Stemmer.__call__ 131tagger.tagger.Tagger.__call__" class="py-name" href="#" onclick="return doclink('link-6', '__call__', 'link-2');">__call__</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">text</tt><tt class="py-op">)</tt> </tt> 132</div></div><a name="L51"></a><tt class="py-lineno"> 51</tt> <tt class="py-line"> </tt> 133<a name="L52"></a><tt class="py-lineno"> 52</tt> <tt class="py-line"> </tt> 134<a name="SimpleReader"></a><div id="SimpleReader-def"><a name="L53"></a><tt class="py-lineno"> 53</tt> <a class="py-toggle" href="#" id="SimpleReader-toggle" onclick="return toggle('SimpleReader');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.extras.SimpleReader-class.html">SimpleReader</a><tt class="py-op">(</tt><tt class="py-base-class">Reader</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 135</div><div id="SimpleReader-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="SimpleReader-expanded"><a name="L54"></a><tt class="py-lineno"> 54</tt> <tt class="py-line"> <tt class="py-docstring">'''</tt> </tt> 136<a name="L55"></a><tt class="py-lineno"> 55</tt> <tt class="py-line"><tt class="py-docstring"> Reader subclass that doesn't perform any advanced analysis of the text</tt> </tt> 137<a name="L56"></a><tt class="py-lineno"> 56</tt> <tt class="py-line"><tt class="py-docstring"> '''</tt> </tt> 138<a name="L57"></a><tt class="py-lineno"> 57</tt> <tt class="py-line"> </tt> 139<a name="SimpleReader.__call__"></a><div id="SimpleReader.__call__-def"><a name="L58"></a><tt class="py-lineno"> 58</tt> <a class="py-toggle" href="#" id="SimpleReader.__call__-toggle" onclick="return toggle('SimpleReader.__call__');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.extras.SimpleReader-class.html#__call__">__call__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 140</div><div id="SimpleReader.__call__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="SimpleReader.__call__-expanded"><a name="L59"></a><tt class="py-lineno"> 59</tt> <tt class="py-line"> <tt class="py-name">text</tt> <tt class="py-op">=</tt> <tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">lower</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt> 141<a name="L60"></a><tt class="py-lineno"> 60</tt> <tt class="py-line"> <tt class="py-name">text</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-7" class="py-name" targets="Method tagger.tagger.Reader.preprocess()=tagger.tagger.Reader-class.html#preprocess,Method tagger.tagger.Stemmer.preprocess()=tagger.tagger.Stemmer-class.html#preprocess"><a title="tagger.tagger.Reader.preprocess 142tagger.tagger.Stemmer.preprocess" class="py-name" href="#" onclick="return doclink('link-7', 'preprocess', 'link-7');">preprocess</a></tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">)</tt> </tt> 143<a name="L61"></a><tt class="py-lineno"> 61</tt> <tt class="py-line"> <tt class="py-name">words</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-8" class="py-name" targets="Variable tagger.tagger.Reader.match_words=tagger.tagger.Reader-class.html#match_words"><a title="tagger.tagger.Reader.match_words" class="py-name" href="#" onclick="return doclink('link-8', 'match_words', 'link-8');">match_words</a></tt><tt class="py-op">.</tt><tt class="py-name">findall</tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">)</tt> </tt> 144<a name="L62"></a><tt class="py-lineno"> 62</tt> <tt class="py-line"> <tt class="py-name">tags</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt id="link-9" class="py-name" targets="Class tagger.tagger.Tag=tagger.tagger.Tag-class.html"><a title="tagger.tagger.Tag" class="py-name" href="#" onclick="return doclink('link-9', 'Tag', 'link-9');">Tag</a></tt><tt class="py-op">(</tt><tt class="py-name">w</tt><tt class="py-op">)</tt> <tt class="py-keyword">for</tt> <tt class="py-name">w</tt> <tt class="py-keyword">in</tt> <tt class="py-name">words</tt><tt class="py-op">]</tt> </tt> 145<a name="L63"></a><tt class="py-lineno"> 63</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">tags</tt> </tt> 146</div></div><a name="L64"></a><tt class="py-lineno"> 64</tt> <tt class="py-line"> </tt> 147<a name="L65"></a><tt class="py-lineno"> 65</tt> <tt class="py-line"> </tt> 148<a name="FastStemmer"></a><div id="FastStemmer-def"><a name="L66"></a><tt class="py-lineno"> 66</tt> <a class="py-toggle" href="#" id="FastStemmer-toggle" onclick="return toggle('FastStemmer');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.extras.FastStemmer-class.html">FastStemmer</a><tt class="py-op">(</tt><tt class="py-base-class">Stemmer</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 149</div><div id="FastStemmer-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="FastStemmer-expanded"><a name="L67"></a><tt class="py-lineno"> 67</tt> <tt class="py-line"> <tt class="py-docstring">'''</tt> </tt> 150<a name="L68"></a><tt class="py-lineno"> 68</tt> <tt class="py-line"><tt class="py-docstring"> Stemmer subclass that uses a much faster, but less correct algorithm</tt> </tt> 151<a name="L69"></a><tt class="py-lineno"> 69</tt> <tt class="py-line"><tt class="py-docstring"> '''</tt> </tt> 152<a name="L70"></a><tt class="py-lineno"> 70</tt> <tt class="py-line"> </tt> 153<a name="FastStemmer.__init__"></a><div id="FastStemmer.__init__-def"><a name="L71"></a><tt class="py-lineno"> 71</tt> <a class="py-toggle" href="#" id="FastStemmer.__init__-toggle" onclick="return toggle('FastStemmer.__init__');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.extras.FastStemmer-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 154</div><div id="FastStemmer.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastStemmer.__init__-expanded"><a name="L72"></a><tt class="py-lineno"> 72</tt> <tt class="py-line"> <tt class="py-keyword">from</tt> <tt class="py-name">stemming</tt> <tt class="py-keyword">import</tt> <tt class="py-name">porter</tt> </tt> 155<a name="L73"></a><tt class="py-lineno"> 73</tt> <tt class="py-line"> </tt> 156<a name="L74"></a><tt class="py-lineno"> 74</tt> <tt class="py-line"> <tt id="link-10" class="py-name" targets="Class tagger.tagger.Stemmer=tagger.tagger.Stemmer-class.html"><a title="tagger.tagger.Stemmer" class="py-name" href="#" onclick="return doclink('link-10', 'Stemmer', 'link-10');">Stemmer</a></tt><tt class="py-op">.</tt><tt id="link-11" class="py-name" targets="Method tagger.extras.FastStemmer.__init__()=tagger.extras.FastStemmer-class.html#__init__,Method tagger.tagger.MultiTag.__init__()=tagger.tagger.MultiTag-class.html#__init__,Method tagger.tagger.Rater.__init__()=tagger.tagger.Rater-class.html#__init__,Method tagger.tagger.Stemmer.__init__()=tagger.tagger.Stemmer-class.html#__init__,Method tagger.tagger.Tag.__init__()=tagger.tagger.Tag-class.html#__init__,Method tagger.tagger.Tagger.__init__()=tagger.tagger.Tagger-class.html#__init__"><a title="tagger.extras.FastStemmer.__init__ 157tagger.tagger.MultiTag.__init__ 158tagger.tagger.Rater.__init__ 159tagger.tagger.Stemmer.__init__ 160tagger.tagger.Tag.__init__ 161tagger.tagger.Tagger.__init__" class="py-name" href="#" onclick="return doclink('link-11', '__init__', 'link-11');">__init__</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">porter</tt><tt class="py-op">)</tt> </tt> 162</div></div><a name="L75"></a><tt class="py-lineno"> 75</tt> <tt class="py-line"> </tt> 163<a name="L76"></a><tt class="py-lineno"> 76</tt> <tt class="py-line"> </tt> 164<a name="NaiveRater"></a><div id="NaiveRater-def"><a name="L77"></a><tt class="py-lineno"> 77</tt> <a class="py-toggle" href="#" id="NaiveRater-toggle" onclick="return toggle('NaiveRater');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tagger.extras.NaiveRater-class.html">NaiveRater</a><tt class="py-op">(</tt><tt class="py-base-class">Rater</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 165</div><div id="NaiveRater-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="NaiveRater-expanded"><a name="L78"></a><tt class="py-lineno"> 78</tt> <tt class="py-line"> <tt class="py-docstring">'''</tt> </tt> 166<a name="L79"></a><tt class="py-lineno"> 79</tt> <tt class="py-line"><tt class="py-docstring"> Rater subclass that jusk ranks single-word tags by their frequency and</tt> </tt> 167<a name="L80"></a><tt class="py-lineno"> 80</tt> <tt class="py-line"><tt class="py-docstring"> weight</tt> </tt> 168<a name="L81"></a><tt class="py-lineno"> 81</tt> <tt class="py-line"><tt class="py-docstring"> '''</tt> </tt> 169<a name="L82"></a><tt class="py-lineno"> 82</tt> <tt class="py-line"> </tt> 170<a name="NaiveRater.__call__"></a><div id="NaiveRater.__call__-def"><a name="L83"></a><tt class="py-lineno"> 83</tt> <a class="py-toggle" href="#" id="NaiveRater.__call__-toggle" onclick="return toggle('NaiveRater.__call__');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.extras.NaiveRater-class.html#__call__">__call__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">tags</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 171</div><div id="NaiveRater.__call__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="NaiveRater.__call__-expanded"><a name="L84"></a><tt class="py-lineno"> 84</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-12" class="py-name" targets="Method tagger.tagger.Rater.rate_tags()=tagger.tagger.Rater-class.html#rate_tags"><a title="tagger.tagger.Rater.rate_tags" class="py-name" href="#" onclick="return doclink('link-12', 'rate_tags', 'link-12');">rate_tags</a></tt><tt class="py-op">(</tt><tt class="py-name">tags</tt><tt class="py-op">)</tt> </tt> 172<a name="L85"></a><tt class="py-lineno"> 85</tt> <tt class="py-line"> <tt class="py-comment"># we still get rid of one-character tags and stopwords</tt> </tt> 173<a name="L86"></a><tt class="py-lineno"> 86</tt> <tt class="py-line"> <tt class="py-name">unique_tags</tt> <tt class="py-op">=</tt> <tt class="py-name">set</tt><tt class="py-op">(</tt><tt class="py-name">t</tt> <tt class="py-keyword">for</tt> <tt class="py-name">t</tt> <tt class="py-keyword">in</tt> <tt class="py-name">tags</tt> </tt> 174<a name="L87"></a><tt class="py-lineno"> 87</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">string</tt><tt class="py-op">)</tt> <tt class="py-op">></tt> <tt class="py-number">1</tt> <tt class="py-keyword">and</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">rating</tt> <tt class="py-op">></tt> <tt class="py-number">0.0</tt><tt class="py-op">)</tt> </tt> 175<a name="L88"></a><tt class="py-lineno"> 88</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">sorted</tt><tt class="py-op">(</tt><tt class="py-name">unique_tags</tt><tt class="py-op">)</tt> </tt> 176</div></div><a name="L89"></a><tt class="py-lineno"> 89</tt> <tt class="py-line"> </tt> 177<a name="L90"></a><tt class="py-lineno"> 90</tt> <tt class="py-line"> </tt> 178<a name="build_dict_from_nltk"></a><div id="build_dict_from_nltk-def"><a name="L91"></a><tt class="py-lineno"> 91</tt> <a class="py-toggle" href="#" id="build_dict_from_nltk-toggle" onclick="return toggle('build_dict_from_nltk');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="tagger.extras-module.html#build_dict_from_nltk">build_dict_from_nltk</a><tt class="py-op">(</tt><tt class="py-param">output_file</tt><tt class="py-op">,</tt> <tt class="py-param">corpus</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">,</tt> <tt class="py-param">stopwords</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">,</tt> </tt> 179<a name="L92"></a><tt class="py-lineno"> 92</tt> <tt class="py-line"> <tt class="py-param">stemmer</tt><tt class="py-op">=</tt><tt id="link-13" class="py-name"><a title="tagger.tagger.Stemmer" class="py-name" href="#" onclick="return doclink('link-13', 'Stemmer', 'link-10');">Stemmer</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-param">measure</tt><tt class="py-op">=</tt><tt class="py-string">'IDF'</tt><tt class="py-op">,</tt> <tt class="py-param">verbose</tt><tt class="py-op">=</tt><tt class="py-name">False</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 180</div><div id="build_dict_from_nltk-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="build_dict_from_nltk-expanded"><a name="L93"></a><tt class="py-lineno"> 93</tt> <tt class="py-line"> <tt class="py-docstring">'''</tt> </tt> 181<a name="L94"></a><tt class="py-lineno"> 94</tt> <tt class="py-line"><tt class="py-docstring"> @param output_file: the name of the file where the dictionary should be</tt> </tt> 182<a name="L95"></a><tt class="py-lineno"> 95</tt> <tt class="py-line"><tt class="py-docstring"> saved</tt> </tt> 183<a name="L96"></a><tt class="py-lineno"> 96</tt> <tt class="py-line"><tt class="py-docstring"> @param corpus: the NLTK corpus to use (defaults to nltk.corpus.reuters)</tt> </tt> 184<a name="L97"></a><tt class="py-lineno"> 97</tt> <tt class="py-line"><tt class="py-docstring"> @param stopwords: a list of (not stemmed) stopwords (defaults to</tt> </tt> 185<a name="L98"></a><tt class="py-lineno"> 98</tt> <tt class="py-line"><tt class="py-docstring"> nltk.corpus.reuters.words('stopwords'))</tt> </tt> 186<a name="L99"></a><tt class="py-lineno"> 99</tt> <tt class="py-line"><tt class="py-docstring"> @param stemmer: the L{Stemmer} object to be used</tt> </tt> 187<a name="L100"></a><tt class="py-lineno">100</tt> <tt class="py-line"><tt class="py-docstring"> @param measure: the measure used to compute the weights ('IDF'</tt> </tt> 188<a name="L101"></a><tt class="py-lineno">101</tt> <tt class="py-line"><tt class="py-docstring"> i.e. 'inverse document frequency' or 'ICF' i.e.</tt> </tt> 189<a name="L102"></a><tt class="py-lineno">102</tt> <tt class="py-line"><tt class="py-docstring"> 'inverse collection frequency'; defaults to 'IDF')</tt> </tt> 190<a name="L103"></a><tt class="py-lineno">103</tt> <tt class="py-line"><tt class="py-docstring"> @param verbose: whether information on the progress should be printed</tt> </tt> 191<a name="L104"></a><tt class="py-lineno">104</tt> <tt class="py-line"><tt class="py-docstring"> on screen</tt> </tt> 192<a name="L105"></a><tt class="py-lineno">105</tt> <tt class="py-line"><tt class="py-docstring"> '''</tt> </tt> 193<a name="L106"></a><tt class="py-lineno">106</tt> <tt class="py-line"> </tt> 194<a name="L107"></a><tt class="py-lineno">107</tt> <tt class="py-line"> <tt class="py-keyword">from</tt> <tt id="link-14" class="py-name" targets="Module tagger.build_dict=tagger.build_dict-module.html,Function tagger.build_dict.build_dict()=tagger.build_dict-module.html#build_dict"><a title="tagger.build_dict 195tagger.build_dict.build_dict" class="py-name" href="#" onclick="return doclink('link-14', 'build_dict', 'link-14');">build_dict</a></tt> <tt class="py-keyword">import</tt> <tt id="link-15" class="py-name"><a title="tagger.build_dict 196tagger.build_dict.build_dict" class="py-name" href="#" onclick="return doclink('link-15', 'build_dict', 'link-14');">build_dict</a></tt> </tt> 197<a name="L108"></a><tt class="py-lineno">108</tt> <tt class="py-line"> <tt class="py-keyword">import</tt> <tt class="py-name">nltk</tt> </tt> 198<a name="L109"></a><tt class="py-lineno">109</tt> <tt class="py-line"> <tt class="py-keyword">import</tt> <tt class="py-name">pickle</tt> </tt> 199<a name="L110"></a><tt class="py-lineno">110</tt> <tt class="py-line"> </tt> 200<a name="L111"></a><tt class="py-lineno">111</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-op">(</tt><tt class="py-name">corpus</tt> <tt class="py-keyword">and</tt> <tt class="py-name">stopwords</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 201<a name="L112"></a><tt class="py-lineno">112</tt> <tt class="py-line"> <tt class="py-name">nltk</tt><tt class="py-op">.</tt><tt class="py-name">download</tt><tt class="py-op">(</tt><tt class="py-string">'reuters'</tt><tt class="py-op">)</tt> </tt> 202<a name="L113"></a><tt class="py-lineno">113</tt> <tt class="py-line"> </tt> 203<a name="L114"></a><tt class="py-lineno">114</tt> <tt class="py-line"> <tt class="py-name">corpus</tt> <tt class="py-op">=</tt> <tt class="py-name">corpus</tt> <tt class="py-keyword">or</tt> <tt class="py-name">nltk</tt><tt class="py-op">.</tt><tt class="py-name">corpus</tt><tt class="py-op">.</tt><tt class="py-name">reuters</tt> </tt> 204<a name="L115"></a><tt class="py-lineno">115</tt> <tt class="py-line"> <tt class="py-name">stopwords</tt> <tt class="py-op">=</tt> <tt class="py-name">stopwords</tt> <tt class="py-keyword">or</tt> <tt class="py-name">nltk</tt><tt class="py-op">.</tt><tt class="py-name">corpus</tt><tt class="py-op">.</tt><tt class="py-name">reuters</tt><tt class="py-op">.</tt><tt class="py-name">words</tt><tt class="py-op">(</tt><tt class="py-string">'stopwords'</tt><tt class="py-op">)</tt> </tt> 205<a name="L116"></a><tt class="py-lineno">116</tt> <tt class="py-line"> </tt> 206<a name="L117"></a><tt class="py-lineno">117</tt> <tt class="py-line"> <tt class="py-name">corpus_list</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-op">]</tt> </tt> 207<a name="L118"></a><tt class="py-lineno">118</tt> <tt class="py-line"> </tt> 208<a name="L119"></a><tt class="py-lineno">119</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">verbose</tt><tt class="py-op">:</tt> <tt class="py-keyword">print</tt> <tt class="py-string">'Processing corpus...'</tt> </tt> 209<a name="L120"></a><tt class="py-lineno">120</tt> <tt class="py-line"> <tt class="py-keyword">for</tt> <tt class="py-name">file</tt> <tt class="py-keyword">in</tt> <tt class="py-name">corpus</tt><tt class="py-op">.</tt><tt class="py-name">fileids</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt> 210<a name="L121"></a><tt class="py-lineno">121</tt> <tt class="py-line"> <tt class="py-name">doc</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-name">stemmer</tt><tt class="py-op">(</tt><tt id="link-16" class="py-name"><a title="tagger.tagger.Tag" class="py-name" href="#" onclick="return doclink('link-16', 'Tag', 'link-9');">Tag</a></tt><tt class="py-op">(</tt><tt class="py-name">w</tt><tt class="py-op">.</tt><tt class="py-name">lower</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt> <tt class="py-keyword">for</tt> <tt class="py-name">w</tt> <tt class="py-keyword">in</tt> <tt class="py-name">corpus</tt><tt class="py-op">.</tt><tt class="py-name">words</tt><tt class="py-op">(</tt><tt class="py-name">file</tt><tt class="py-op">)</tt> </tt> 211<a name="L122"></a><tt class="py-lineno">122</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">w</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">isalpha</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt> 212<a name="L123"></a><tt class="py-lineno">123</tt> <tt class="py-line"> <tt class="py-name">corpus_list</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt class="py-name">doc</tt><tt class="py-op">)</tt> </tt> 213<a name="L124"></a><tt class="py-lineno">124</tt> <tt class="py-line"> </tt> 214<a name="L125"></a><tt class="py-lineno">125</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">verbose</tt><tt class="py-op">:</tt> <tt class="py-keyword">print</tt> <tt class="py-string">'Processing stopwords...'</tt> </tt> 215<a name="L126"></a><tt class="py-lineno">126</tt> <tt class="py-line"> <tt class="py-name">stopwords</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-name">stemmer</tt><tt class="py-op">(</tt><tt id="link-17" class="py-name"><a title="tagger.tagger.Tag" class="py-name" href="#" onclick="return doclink('link-17', 'Tag', 'link-9');">Tag</a></tt><tt class="py-op">(</tt><tt class="py-name">w</tt><tt class="py-op">.</tt><tt class="py-name">lower</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">stem</tt> <tt class="py-keyword">for</tt> <tt class="py-name">w</tt> <tt class="py-keyword">in</tt> <tt class="py-name">stopwords</tt><tt class="py-op">]</tt> </tt> 216<a name="L127"></a><tt class="py-lineno">127</tt> <tt class="py-line"> </tt> 217<a name="L128"></a><tt class="py-lineno">128</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">verbose</tt><tt class="py-op">:</tt> <tt class="py-keyword">print</tt> <tt class="py-string">'Building dictionary... '</tt> </tt> 218<a name="L129"></a><tt class="py-lineno">129</tt> <tt class="py-line"> <tt class="py-name">dictionary</tt> <tt class="py-op">=</tt> <tt id="link-18" class="py-name"><a title="tagger.build_dict 219tagger.build_dict.build_dict" class="py-name" href="#" onclick="return doclink('link-18', 'build_dict', 'link-14');">build_dict</a></tt><tt class="py-op">(</tt><tt class="py-name">corpus_list</tt><tt class="py-op">,</tt> <tt class="py-name">stopwords</tt><tt class="py-op">,</tt> <tt class="py-name">measure</tt><tt class="py-op">)</tt> </tt> 220<a name="L130"></a><tt class="py-lineno">130</tt> <tt class="py-line"> <tt class="py-keyword">with</tt> <tt class="py-name">open</tt><tt class="py-op">(</tt><tt class="py-name">output_file</tt><tt class="py-op">,</tt> <tt class="py-string">'wb'</tt><tt class="py-op">)</tt> <tt class="py-keyword">as</tt> <tt class="py-name">out</tt><tt class="py-op">:</tt> </tt> 221<a name="L131"></a><tt class="py-lineno">131</tt> <tt class="py-line"> <tt class="py-name">pickle</tt><tt class="py-op">.</tt><tt class="py-name">dump</tt><tt class="py-op">(</tt><tt class="py-name">dictionary</tt><tt class="py-op">,</tt> <tt class="py-name">out</tt><tt class="py-op">,</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">)</tt> </tt> 222</div><a name="L132"></a><tt class="py-lineno">132</tt> <tt class="py-line"> </tt><script type="text/javascript"> 223<!-- 224expandto(location.href); 225// --> 226</script> 227</pre> 228<br /> 229<!-- ==================== NAVIGATION BAR ==================== --> 230<table class="navbar" border="0" width="100%" cellpadding="0" 231 bgcolor="#a0c0ff" cellspacing="0"> 232 <tr valign="middle"> 233 234 <!-- Tree link --> 235 <th> <a 236 href="module-tree.html">Trees</a> </th> 237 238 <!-- Index link --> 239 <th> <a 240 href="identifier-index.html">Indices</a> </th> 241 242 <!-- Help link --> 243 <th> <a 244 href="help.html">Help</a> </th> 245 246 <!-- Project homepage --> 247 <th class="navbar" align="right" width="100%"> 248 <table border="0" cellpadding="0" cellspacing="0"> 249 <tr><th class="navbar" align="center" 250 ><a class="navbar" target="_top" href="http://github.com/apresta/tagger">tagger</a></th> 251 </tr></table></th> 252 </tr> 253</table> 254<table border="0" cellpadding="0" cellspacing="0" width="100%%"> 255 <tr> 256 <td align="left" class="footer"> 257 Generated by Epydoc 3.0.1 on Wed Jun 8 01:57:46 2011 258 </td> 259 <td align="right" class="footer"> 260 <a target="mainFrame" href="http://epydoc.sourceforge.net" 261 >http://epydoc.sourceforge.net</a> 262 </td> 263 </tr> 264</table> 265 266<script type="text/javascript"> 267 <!-- 268 // Private objects are initially displayed (because if 269 // javascript is turned off then we want them to be 270 // visible); but by default, we want to hide them. 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